Wireless relay hub



FIG. 1 is a front, top perspective view of a wireless relay hub;

FIG. 2 is a front, bottom perspective view thereof;

FIG. 3 is a rear plan view thereof;

FIG. 4 is a front plan view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a top plan view thereof.

The broken line showing of ports, buttons, an attachment mechanism and electrical charger contacts is for the purpose of illustrating environmental structure and forms no part of the claimed design. 

The ornamental design for a wireless relay hub, as shown and described. 